package demo2;

public class Keyboard implements IUSB{
    @Override
    public void openDevice() {
        System.out.println(" 打开键盘服务 ");
    }

    @Override
    public void closeDevice() {
        System.out.println(" 关闭键盘服务 ");
    }
    public void inPut(){
        System.out.println(" 输入键盘信息 ");
    }
}
